PPRuNe Forums - View Single Post - Byron Bailey, The Australian, MCAS
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Old 15th Oct 2019, 09:40
  #44 (permalink)  
cessnapete
 
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Originally Posted by das Uber Soldat
Personally I think it smacks of arrogance to dismiss as negligent the efforts of these crew as who died fighting an aircraft actively trying to murder them. That an excellent crew in the past saved a similar situation does not obviate the aircraft of blame in this incident, lest you also believe that Sullys successful handling of a double engine failure at 3000 in the middle of a dense city means all future crew who fail to deliver the same result should be considered incompetent.

These crew did not suffer a simple MCAS failure in isolation. They had to deal with all manner of unreliable speed indications, a non stop stick shaker and the fact MCAS is masked within these failures, and does not behave like a 'vanilla' stab trim runaway. Not to mention of course they were never told about MCAS, trained on its failure modes or had an opportunity to witness this failure, one that was clearly inevitable given the stupidity of Boeing's design to include a single data input. Further, given the speed at which it operates (with everything else going on), you can disconnect the trim switches and no longer have that spurious input, yet in a very short space of time it wont make a difference as the forces required to rectify the out of trim situation are too significant to overcome anyway, as the Ethiopian crew found out.

Boeing needs to build a plane that can be safely operated by all crew, not just the Ace of the Base such as yourself.
The speed at which the crew were unable to retire the aircraft in the ET accident.?
Probably didn't help that the crew in the ET accident missed the basic action of reducing from TOGA power after takeoff.
Take off power remained set the whole of the short flight until hitting the ground. Basic Airmanship missing in their training somewhere.
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